(19)
(11) EP 0 870 950 A3

(12) EUROPEAN PATENT APPLICATION

(88) Date of publication A3:
17.01.2001 Bulletin 2001/03

(43) Date of publication A2:
14.10.1998 Bulletin 1998/42

(21) Application number: 98106627.7

(22) Date of filing: 09.04.1998
(51) International Patent Classification (IPC)7: F16H 55/56, F16H 55/48
(84) Designated Contracting States:
AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE
Designated Extension States:
AL LT LV MK RO SI

(30) Priority: 11.04.1997 JP 9398397

(71) Applicant: Koyo Seiko Co., Ltd.
Osaka-shi, Osaka 542-0081 (JP)

(72) Inventor:
  • Arai, Hirokazu
    Chuo-ku, Osaka-shi, Osaka 542-0081 (JP)

(74) Representative: Bohnenberger, Johannes, Dr. et al
Meissner, Bolte & Partner Widenmayerstrasse 48
80538 München
80538 München (DE)

   


(54) Power transmission member


(57) A power transmission member is constructed by molding a resin material obtained by mixing a carbon fiber, an aromatic polyamide fiber, graphite, and talc with phenol resin. The preferred contents of the carbon fiber, the aromatic polyamide fiber, the graphite and the talc in the resin material are respectively 5 to 30 % by weight, 5 to 15 % by weight, 10 to 15 % by weight, and 5 to 20 % by weight. The phenol resin is filled with the carbon fiber and the aromatic polyamide fiber in order that the power transmission member has high strength and suitable flexibility. The phenol resin is filled with the graphite in order to suitably lower the coefficient of friction of the power transmission member to improve the wear resistance thereof. The talc is used for adjusting the frictional force of the power transmission member.






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